I often correct homework by checking the calculations in Mathematica. Sometimes you would like to have two solutions open at once. However often defined symbols such as ...
Here's a small listing where I've used EscqEsc to typeset θ in the notebook: ...
Is there some way to do this other than going to Evaluation -> Quit kernel and firing a new one up?
I have a list of global variables (some of them are indexed variables), for example: varsH = Hold[U0, U0, B0, V0, V0] Or (if it is easier to handle) ...
I have a function of two variables, e.g.: f[a_, b_] := f[a, b] = something f[a - 1, b - 1] etc With the above code I used the concept of memoization to speed up ...
I know that this has been discussed here (How do I clear all user defined symbols?), but my case is somewhat different. How does one unload packages during runtime that were loaded with the start of ...
I have a lot of variables: $a,b,c,d, \ldots $ I want to clear the values of all of them except $b$. It's really lengthy to write Clear[a]; Clear[c]; ... Is ...